These high-frequency radio rotary joints are specifically designed for broadband signal transmission in satellite communication systems, radio antennas, radar systems, and similar applications. They operate within the 1 to 4.5 GHz frequency range, featuring exceptionally low insertion loss (<0.5dB) and phase stability (±2°). With the modular construction and support for dimensional customization, you can rapidly integrate them into rotating equipment for immediate use.
ByTune always provides flexible sizes in rotary joints, so you only need to tell us your dimensional data requirements, and we will provide you with a single-channel or dual-channel rotary joint, and help you decide between the two according to your specific situation!
Features
Low Torque Seals
These high-frequency radio rotary joints utilize a low-friction sealing technology that allows the rotating parts to mate or disengage more easily during connection and disconnection, thus reducing potential mechanical damage.
Compact Design
Considering space constraints, the rotary joints are designed with smaller dimensions and lightweight construction for quick installation into complex, small mechanical equipment.
NPT/BSPT Connections
The rotary joints offer a variety of pipe thread connection options, including American Standard (NPT) and British Standard (BSPT), to accommodate transmission systems in different regions and provide greater versatility.
Customized Options
They can be customized according to specific application requirements, including but not limited to special materials, connection methods, size adjustment, etc., to meet your specific engineering needs.
Parameters
|
Channel designation |
Channel 1 |
Channel 2 |
|
Interface |
1.5-3.5 female |
1.5-3.5 female |
|
Frequency range |
DC to 4.5 GHz |
DC to 4.5 GHz |
|
Peak power, max. |
1 kW |
1 kW |
|
Average power, max. |
10 W |
10 W |
|
VSWR, max. |
1.2 |
1.5 |
|
VSWR variation during rotation, max. |
0.05 |
0.20 |
|
Insertion loss, max. |
0.25 dB |
0.30 dB |
|
Insertion loss variation during rotation, max. |
0.05 dB |
0.15 dB |
|
Phase variation during rotation, max. |
0.5 deg. @ DC to 4.5 GHz |
4 deg. @ DC to 4.5 GHz |
|
Isolation, min. |
50 dB |
|
|
DC carrying capability, min. |
0.5 A* @ 24 VDC |
0.5 A* @ 24 VDC |
Condition: DC applied to one channel only.
|
Rotating speed, max. |
200 rpm |
Life, min. |
10 Mio. revolutions |
|
Starting torque, max. |
0.05 Nm @ ambient temp. |
Torque during rotation, max. |
0.05 Nm @ ambient temp. |
|
Axial load on interface, max. |
≥5 N |
Radial load on interface, max. |
≥5 N |
|
Case material |
aluminum alloy |
Case surface finish |
chromate conversion coat per MIL-C-5541 |
|
Connector material |
SMA connector copper alloy |
Connector surface finish |
gold plated |
|
Weight, approx. |
0.13 kg |
Marking |
adhesive label |
General Environmental Conditions
|
Operation |
|
|
Temperature range |
-40℃ to +70℃ |
|
Humidity |
95% RH (non-condensing) |
|
IP protection level |
IP60 per EN 60529 |
|
Storage |
|
|
Temperature range |
-55℃ to +70℃ |
|
Humidity |
95% RH (non-condensing) |
Inspection Department
We ensure that all slip ring products are rigorously and carefully tested for electrical and mechanical performance after production. This includes 3D testing, concentricity testing, electrical noise testing, interference testing, humidity testing, etc. In order to provide you with quality-assured products, we will also attach a test report to your order!
FAQ
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